Deprecation Class Drupal\time_field\Element\TimeElement extends deprecated class Drupal\Core\Render\Element\FormElement

Problem/Motivation

Fix deprecation (phpstan)

Steps to reproduce

Class Drupal\time_field\Element\TimeElement extends deprecated class  
         Drupal\Core\Render\Element\FormElement:                               
         in drupal:10.3.0 and is removed from drupal:12.0.0. use               
           \Drupal\Core\Render\Element\FormElementBase instead. 

Proposed resolution

Fix deprecation.

Remaining tasks

MR

User interface changes

API changes

Data model changes